//part1:C02:ep2.2.4:ep2.2.4.1.cpp
#include <iostream>
#include <ostream>
int reused = 42;
int main(void)
{
    int unique = 0;
    std::cout << reused << " " << unique << std::endl;
    int reused = 0;
    std::cout << reused << " " << unique << std::endl;
    std::cout << ::reused << " " << unique << std::endl;
    
    return 0;
}